About Cosmophasis thalassina (C.L.Koch, 1846)
The carapace of Cosmophasis thalassina is covered with greenish-bronze, scale-like copper hairs, and marked with several black transverse bands. Its opisthosoma is mostly dark, with a white collar at the front that extends more than halfway along each side, and some transverse white marks are visible on the frontal section. Its dark legs carry white and bronze scale-like hairs. The species' metallic coloration comes from a combination of a first-order diffraction grating and an underlying broadband multilayer reflector. The grating redirects most of the blue spectral component away from the direction of incoming light; when combined with white reflection, this produces a yellow reflection from most viewing angles. Cosmophasis thalassina feeds on ants.
